'\" te
.\" Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
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.TH SCF_SIMPLE_WALK_INSTANCES 3SCF "Aug 17, 2004"
.SH NAME
scf_simple_walk_instances \- observational interface for Service Configuration
Facility
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-lscf\fR [ \fIlibrary\fR\&.\|.\|. ]
#include <libscf.h>

\fBint\fR \fBscf_simple_walk_instances\fR(\fBuint_t\fR \fIflags\fR, \fBvoid *\fR\fIprivate\fR,
     \fBint (*\fR\fIinst_callback\fR)(scf_handle_t *, scf_instance_t *, void *));
.fi

.SH DESCRIPTION
.sp
.LP
The \fBscf_simple_walk_instances()\fR function iterates over every service
instance in a specified state and calls a callback function provided by the
user on each specified instance.
.sp
.LP
The function takes a \fIflags\fR argument to indicate which instance states are
involved in the iteration, an opaque buffer to be passed to the callback
function, and a callback function with three arguments, a handle, an instance
pointer, and an opaque buffer. If the callback function returns a value other
than success, iteration is ended, an error is set, and the function returns -1.
.sp
.LP
The handle passed to the callback function is provided to the callback function
by the library. This handle is used by the callback function for all low-level
allocation involved in the function.
.sp
.LP
The simplified library provides defined constants for the \fIflags\fR argument.
The user can use a bitwise OR to apply more than one flag. The
\fBSCF_STATE_ALL\fR flag is a bitwise OR of all the other states.The flags are:
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_UNINIT\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_MAINT\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_OFFLINE\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_DISABLED\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_ONLINE\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_DEGRADED\fR
.RE
.RS +4
.TP
.ie t \(bu
.el o
\fBSCF_STATE_ALL\fR
.RE
.SH RETURN VALUES
.sp
.LP
Upon successful completion, \fBscf_simple_walk_instances()\fR returns 0.
Otherwise, it returns -1.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Evolving
_
MT-Level	MT-Safe
.TE

.SH SEE ALSO
.sp
.LP
.BR libscf (3LIB),
.BR attributes (7)
